3Com 3C10402B, Руководство администратора

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282 C
HAPTER
11: D
IAL
P
LAN
4 Click Apply and then click OK to confirm.
The system imports the modified dial plan and displays the results of the
error and consistency checks.
5 To correct any errors, edit the file and click Apply . You might be required
to make changes based on warning messages.
Outdialing Prefix
Settings
A telephone user can use the telephone display panel to look up a call in
the call logs (Missed Calls, Answered Calls, and Dialed Calls), select a
telephone number from any of the logs, and redial it.
To redial a number from the Missed Calls or Answered Calls list, the
system must know the appropriate dial prefix to prepend to the digits in
the telephone number.
For information about and examples of how to configure outdialing
prefixes, see the online Help.
Managing
Extensions
This section describes how to add, change, and manage extensions:
■
Extension Settings Overview
■
Changing Extension Length and Ranges
■
How Auto Discovery Assigns Extensions
■
Modifying Extensions
■
Converting Extensions
Extension Settings
Overview
The system establishes connections between extension numbers. The
concept of an extension applies to more than just telephones. Extensions
are also assigned to applications such as Call Park zones, Auto
Attendants, hunt groups, Line Card ports, voice mail ports, and virtual
devices such as the pcXset™ PC soft telephone Client and the
ConneXtions H.323 Gateway.
The extension length (either 3 or 4 digits), which applies to all extensions
on a system, indicates that all extensions contain that number of digits.
You cannot mix 3-digit and 4-digit extensions within the same system.
Systems support 3-digit and 4-digit dial plans, although there are some
differences in the extension ranges as noted in these tables. By default,